The Evolution and Revolution of Search Engines
by Steve Bis
Search engines, where would we be without them? Within the past
10-15 years the internet has become a huge part of every day American
life. Many people nowadays cannot remember the time prior to having
this wonderful information highway we call the internet. The internet
has really revolutionized the way people live their lives; for example,
you can bank online, buy just about anything you want online, meet
new people online, and even find local movie times. However, one
of the biggest benefits of the internet is the use of search engines.
At any moment in time you may have a question, or an urge to get
more information about a certain topic and that information can
be easily attained through a search engine. In this article I am
going to give you a brief history on the evolution of the search
engine, and show you how they truly have revolutionized our lifestyles.
The history of search engines is the story of university
students projects evolving into commercial enterprises and
revolutionizing the field as they went. The first attempt at creating
a search engine was called Archie, and it was created in 1990 by
Alan Emtage, a student at McGill University. This very primitive
search engine did not use any robot technology. All Archie really
did was just become a database of archived filenames, which it would
try to match with users queries.
The next evolutionary step of the search engine was
the introduction of robots. The first use of robot technology
was in the search engine World Wide Web Wanderer. Simply what robots
would do is scan the internet for URLs, starting at one site
and using the links in the previous site to find more sites. The
problems with these first robots were that if they were not written
properly they would cause too many hits on a server decaying the
systems performance.
To combat these initial problems Martjin Koster came
out with the first web directory called Aliweb in October
1993. Web directories are different than search engines because
the sites listed in them are not from automated robots, but rather
from human editors reviewing sites and placing them in the directory.
However, shortly after, in December 1993, a new robot
was born. This was called the spider. Spiders added
a much further degree of accuracy by indexing the entire text of
a webpage. The older robots only indexed the URL and titles of a
page, which meant that some pertinent keywords might not be indexed.
This greatly improved the relevancy rankings of their results, and
thus was the first major step in forming the major search engines
that we have all become so used to using today.
Not long after the spider, we saw the emergence of
some of the big guns. In 1994, out of Stanford University came the
extremely famous Yahoo. The two guys who started Yahoo were students,
David Filo and JerryYang. Basically, at first Yahoo was just a list
of these guys favorite websites. But soon, due to its easy
user-friendly interface, became the most popular web directory.
Due to the fact that its websites were all human reviewed, Yahoo
was only able to index about 1% of the web. At this time, Altavista
became the fastest growing search engines using the spider technology
and was indexing up to 10 million pages a day.
By this time there are two different types of search
engines, author controlled such as Altavista and Excite,
in which results were ranked by keyword relevancy, and editor
controlled such as Yahoo, in which humans manually placed
websites into their index.
Then in late 1997 out of Stanford University was born
the most popular and well-known search engine to date: GOOGLE Google
has a different way of ranking its websites. It used a Pagerank
system. Simply what they did was list websites higher in their results
based on how many links were pointing to a particular site. Of course,
the content on the page had to be relevant to the keyword typed
into the search box. But basically, Google invented what you could
call a system of voting. So a site with numerous backlinks or votes
would rank higher. A backlink is just when someone else puts a link
on their site that points to another outside site. Jump forward
to today and Google has more than 80% of the websites on the internet
in their index, which is pretty impressive.
Search engines have had a huge impact on the American
lifestyle. They basically will grant you just about any information
you want, all you have to do is type into the search box the topic
you want to find more information about. Human beings are natural
born information junkies, we always want to know more and find out
more and search engines have made this urge of ours extremely easy
to cure. Just think about it, maybe you need to fix a simple problem
you have with your car. By using a search engine to do some research
you may very easily figure the problem out, saving you a very costly
trip to the car repair shop. They are just great educational tools,
before search engines emerged if you really wanted to learn something
you would go to your library and check out a book. Now before making
that trip you may find out what you wanted by just sitting at your
desktop and surfing through Google. The list goes on about the many
benefits of this great new technology we call the search engine.
Im sure you can recall a time when you found some very good
information by using one. If youre anything like me and find
yourself addicted to this easily accessible information highway
then your making uses of them daily.
Search engines by nature were made very easy to use.
However, with a little extra knowledge about how they work you can
really take advantage of them and find great information very quickly.
With the right knowledge of search engines and the use of specialized
tools you can literally find anything you want. And when I mean
anything, I mean ANYTHING. For me personally I am excited to see
what search engines will evolve into in the future. The sky is the
limit. Who knows what type of search spiders the future will spawn,
but one thing is for sure there will be newer and newer search technology
its just our human nature to keep trying to top ourselves.
About The Author
Search engine specialist Steve Bis, is the author
of the free search secrets newsletter and owns a unique web search
tool that will help you find anything on the internet in 60 seconds,
eliminating your search frustrations. http://www.ultimatesearchpro.com.
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